	.banner-container form .tip {
		padding-top: 5px;
		color: hsla(0,0%,100%,.6);
	}
	.header{
		background-color: #191e29;
		border-width: 0;
	}
	.header .navbar-brand {
		padding: 0;
	}
	.header .navbar-brand img {
		height: 50px;
	}
	.header .navbar-nav>li>a {
		font-size: 16px;
	}
	.header .navbar-nav .dropdown .dropdown-menu {
		min-width: 130px;
		border-width: 0;
		text-align: center;
	}
	.header .navbar-nav .dropdown .dropdown-menu {
		background-color: #191e29;
	}
	.navbar-banner {
		margin-top: 50px;
		background: url("img/homepage-bg.png");
		background-size: cover;
		backgtound-repeat: no-repeat;
	}
	.banner-container {
		background: none;
		background-size: 100% 100%;
		min-height: 612px;
		padding-top: 140px;
	}
	.navbar-banner {
		margin-top: 50px;
		background: url(img/homepage-bg.png);
		background-size: cover;
		backgtound-repeat: no-repeat;
	}

	.course-btn {
		color: #fff;
		background-color: #11aa8c;
		border-color: #11aa8c;
		margin-bottom: 30px;
		font-size: 20px;
		border-radius: 4px;
		box-shadow: 0 1px 10px rgb(0 0 0 / 43%);
		padding: 12px 36px;
	}
	.banner-container form .register {
		width: 80%;
		height: 52px;
		background: #11aa8c;
		color: #fff;
		font-size: 20px;
		margin-top: 8px;
		border-radius: 5px;
	}
	.introduce-container .introduce-unit {
		padding: 35px;
		text-align: center;
	}

	.introduce-container .introduce-unit .introduce-span {
		font-size: 16px;
		color: #6a849d;
	}
	.line-and-laboratory .item-header {
		margin-bottom: 64px;
	}
	.line-and-laboratory .item-header .line {
		width: 12%;
		display: inline-block;
		border-top: 1px solid #777;
		margin-bottom: 10px;
	}
	.line-and-laboratory .item-header .item-title {
		width: 200px;
		display: inline-block;
		color: #777;
		font-size: 30px;
	}
	.path-item {
		height: 100px;
		margin-bottom: 10px;
		box-shadow: 0 0 3px #ccc;
		position: relative;
	}
	.path-item .path-img {
		text-align: left;
		padding: 0;
	}
	.path-item .path-name {
		color: #565656;
		font-size: 18px;
		padding-top: 20px;
	}
	.path-item .path-course-num {
		color: #9b9da2;
		font-size: 14px;
		padding-top: 10px;
	}
	.path-item .desc-layer {
		position: absolute;
		top: 0;
		left: 100px;
		right: 0;
		bottom: 0;
		background: hsla(0,0%,58%,.8);
		padding: 20px 11px;
		display: none;
	}
	.path-item .desc-layer .center {
		height: 60px;
		color: #fff;
		font-size: 12px;
		line-height: 20px;
		overflow: hidden;
		text-overflow: ellipsis;
		display: -webkit-box;
		-webkit-box-orient: vertical;
		-webkit-line-clamp: 3;
	}
	.line-and-laboratory {
		background-color: #fff;
		padding: 50px 0;
	}
	.line-and-laboratory .communities, .line-and-laboratory .courses {
		margin-top: -10px;
	}

	.course {
		text-decoration: none;
		margin: 10px 0;
	}
	.course-box {
		display: block;
		position: relative;
		min-height: 220px;
		margin: 0;
		background: #fff;
		box-shadow: 0 2px 2px 0 #eee;
	}
	.course-box .sign-box {
		width: 100%;
		color: #565a61;
		padding: 0 5%;
		position: absolute;
		z-index: 9;
		top: -5px;
	}
	.course-box .course-img {
		width: 100%;
	}
	.course-box .course-img>img {
		width: 100%;
		height: 140px;
	}
	.course-box .course-body {
		padding: 5% 5% 0;
	}
	.course-box .course-footer {
		width: 100%;
		height: 43px;
		color: #9b9da2;
		padding: 10px 5%;
		overflow: hidden;
	}
	.course-box .course-body .course-title {
		display: inline-block;
		width: 100%;
		color: #4c5157;
		font-size: 16px;
		overflow: hidden;
		text-overflow: ellipsis;
		white-space: nowrap;
	}
	.course-box .course-footer {
		width: 100%;
		height: 43px;
		color: #9b9da2;
		padding: 10px 5%;
		overflow: hidden;
	}
	.course-box .course-footer .course-per-num {
		display: inline-block;
		padding: 4px 0 0;
		overflow: hidden;
		text-overflow: ellipsis;
		white-space: nowrap;
		text-align: center;
	}
	.line-and-laboratory .watch-all a {
		color: #787878;
		font-size: 14px;
	}
	.footer {
		padding-top: 20px;
		background: #191e29;
	}
	.footer-col .col-title {
		font-size: 14px;
		margin-bottom: 10px;
		color: hsla(0,0%,100%,.5);
	}
	.footer-col a {
		display: inline-block;
		margin-bottom: 3px;
		color: hsla(0,0%,100%,.5);
	}
	.copyright, .copyright a {
		color: #777;
	}
	.copyright {
		height: 50px;
		line-height: 50px;
		background: #171918;
		margin-top: 20px;
	}
	.text-center {
		text-align: center;
	}